X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_chanfilter.cpp;h=14735b13db8d1cc0c52e3353b25024799a2609d1;hb=80e81e3b81b779901fd9d67f8ae030ee30c0bcec;hp=901494b9578f0ff94e7b5c4718f7b3a8623b5dfa;hpb=76d7e8a0684b38a82e6c05ebd7538b69660e1bef;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_chanfilter.cpp b/src/modules/m_chanfilter.cpp index 901494b95..14735b13d 100644 --- a/src/modules/m_chanfilter.cpp +++ b/src/modules/m_chanfilter.cpp @@ -1,175 +1,176 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2007 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * Copyright (C) 2019 linuxdaemon + * Copyright (C) 2013, 2017-2020 Sadie Powell + * Copyright (C) 2012-2014 Attila Molnar + * Copyright (C) 2012, 2018 Robby + * Copyright (C) 2009 Daniel De Graaf + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2006 Oliver Lupton + * Copyright (C) 2005-2006, 2008-2010 Craig Edwards * - * This program is free but copyrighted software; see - * the file COPYING for details. + * This file is part of InspIRCd. InspIRCd is free software: you can + * redistribute it and/or modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. * - * --------------------------------------------------- + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ + #include "inspircd.h" -#include "users.h" -#include "channels.h" -#include "modules.h" -#include "hashcomp.h" -#include "u_listmode.h" +#include "listmode.h" +#include "modules/exemption.h" -/* $ModDesc: Provides channel-specific censor lists (like mode +G but varies from channel to channel) */ -/* $ModDep: ../../include/u_listmode.h */ +enum +{ + // InspIRCd-specific. + RPL_ENDOFSPAMFILTER = 940, + RPL_SPAMFILTER = 941 +}; -/** Handles channel mode +g - */ class ChanFilter : public ListModeBase { public: - ChanFilter(InspIRCd* Instance) : ListModeBase(Instance, 'g', "End of channel spamfilter list", "941", "940", false, "chanfilter") { } - - virtual bool ValidateParam(userrec* user, chanrec* chan, std::string &word) + unsigned long maxlen; + + ChanFilter(Module* Creator) + : ListModeBase(Creator, "filter", 'g', "End of channel spamfilter list", RPL_SPAMFILTER, RPL_ENDOFSPAMFILTER, false) + { + syntax = ""; + } + + bool ValidateParam(User* user, Channel* chan, std::string& word) CXX11_OVERRIDE { - if ((word.length() > 35) || (word.empty())) + if (word.length() > maxlen) { - user->WriteServ("935 %s %s %s :word is too %s for censor list",user->nick, chan->name,word.c_str(), (word.empty() ? "short" : "long")); + user->WriteNumeric(Numerics::InvalidModeParameter(chan, this, word, "Word is too long for the spamfilter list.")); return false; } - - return true; - } - - virtual bool TellListTooLong(userrec* user, chanrec* chan, std::string &word) - { - user->WriteServ("939 %s %s %s :Channel spamfilter list is full",user->nick, chan->name, word.c_str()); + return true; } - - virtual void TellAlreadyOnList(userrec* user, chanrec* chan, std::string &word) - { - user->WriteServ("937 %s %s :The word %s is already on the spamfilter list",user->nick, chan->name,word.c_str()); - } - - virtual void TellNotSet(userrec* user, chanrec* chan, std::string &word) - { - user->WriteServ("938 %s %s :No such spamfilter word is set",user->nick, chan->name); - } }; class ModuleChanFilter : public Module { - - ChanFilter* cf; - - public: - - ModuleChanFilter(InspIRCd* Me) - : Module(Me) + CheckExemption::EventProvider exemptionprov; + ChanFilter cf; + bool hidemask; + bool notifyuser; + + ChanFilter::ListItem* Match(User* user, Channel* chan, const std::string& text) { - cf = new ChanFilter(ServerInstance); - if (!ServerInstance->AddMode(cf, 'g')) - throw ModuleException("Could not add new modes!"); - } + ModResult res = CheckExemption::Call(exemptionprov, user, chan, "filter"); + if (!IS_LOCAL(user) || res == MOD_RES_ALLOW) + return NULL; + + ListModeBase::ModeList* list = cf.GetList(chan); + if (!list) + return NULL; - void Implements(char* List) - { - cf->DoImplements(List); - List[I_OnCleanup] = List[I_OnChannelDelete] = List[I_OnRehash] = List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnSyncChannel] = 1; + for (ListModeBase::ModeList::iterator i = list->begin(); i != list->end(); i++) + { + if (InspIRCd::Match(text, i->mask)) + return &*i; + } + + return NULL; } - virtual void OnChannelDelete(chanrec* chan) + public: + + ModuleChanFilter() + : exemptionprov(this) + , cf(this) { - cf->DoChannelDelete(chan); } - virtual void OnRehash(userrec* user, const std::string ¶meter) + void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE { - cf->DoRehash(); + ConfigTag* tag = ServerInstance->Config->ConfValue("chanfilter"); + hidemask = tag->getBool("hidemask"); + cf.maxlen = tag->getUInt("maxlen", 35, 10, ModeParser::MODE_PARAM_MAX); + notifyuser = tag->getBool("notifyuser", true); + cf.DoRehash(); } - virtual int ProcessMessages(userrec* user,chanrec* chan,std::string &text) + void OnUserPart(Membership* memb, std::string& partmessage, CUList& except_list) CXX11_OVERRIDE { - if (!IS_LOCAL(user) || CHANOPS_EXEMPT(ServerInstance, 'g') && chan->GetStatus(user) == STATUS_OP) - return 0; + if (!memb) + return; - // Create a copy of the string in irc::string - irc::string line = text.c_str(); + User* user = memb->user; + Channel* chan = memb->chan; + ChanFilter::ListItem* match = Match(user, chan, partmessage); + if (!match) + return; - modelist* list; - chan->GetExt(cf->GetInfoKey(), list); + // Match() checks the user is local, we can assume from here + LocalUser* luser = IS_LOCAL(user); - if (list) + std::string oldreason(partmessage); + partmessage = "Reason filtered"; + if (!notifyuser) { - for (modelist::iterator i = list->begin(); i != list->end(); i++) - { - if (line.find(i->mask.c_str()) != std::string::npos) - { - user->WriteServ("936 %s %s %s :Your message contained a censored word, and was blocked",user->nick, chan->name, i->mask.c_str()); - return 1; - } - } + // Send fake part + ClientProtocol::Messages::Part partmsg(memb, oldreason); + ClientProtocol::Event ev(ServerInstance->GetRFCEvents().part, partmsg); + luser->Send(ev); + + // Don't send the user the changed message + except_list.insert(user); + return; } - return 0; + if (hidemask) + user->WriteNumeric(Numerics::CannotSendTo(chan, "Your part message contained a banned phrase and was blocked.")); + else + user->WriteNumeric(Numerics::CannotSendTo(chan, InspIRCd::Format("Your part message contained a banned phrase (%s) and was blocked.", + match->mask.c_str()))); } - virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) + ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE { - if (target_type == TYPE_CHANNEL) + if (target.type != MessageTarget::TYPE_CHANNEL) + return MOD_RES_PASSTHRU; + + Channel* chan = target.Get(); + ChanFilter::ListItem* match = Match(user, chan, details.text); + if (match) { - return ProcessMessages(user,(chanrec*)dest,text); - } - else return 0; - } + if (!notifyuser) + { + details.echo_original = true; + return MOD_RES_DENY; + } - virtual void OnCleanup(int target_type, void* item) - { - cf->DoCleanup(target_type, item); - } - - virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) - { - return OnUserPreMessage(user,dest,target_type,text,status,exempt_list); - } - - virtual void OnSyncChannel(chanrec* chan, Module* proto, void* opaque) - { - cf->DoSyncChannel(chan, proto, opaque); - } + if (hidemask) + user->WriteNumeric(Numerics::CannotSendTo(chan, "Your message to this channel contained a banned phrase and was blocked.")); + else + user->WriteNumeric(Numerics::CannotSendTo(chan, InspIRCd::Format("Your message to this channel contained a banned phrase (%s) and was blocked.", + match->mask.c_str()))); - virtual Version GetVersion() - { - return Version(1, 1, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION); - } - - virtual ~ModuleChanFilter() - { - ServerInstance->Modes->DelMode(cf); - DELETE(cf); + return MOD_RES_DENY; + } + return MOD_RES_PASSTHRU; } -}; - -class ModuleChanFilterFactory : public ModuleFactory -{ - public: - ModuleChanFilterFactory() + Version GetVersion() CXX11_OVERRIDE { + // We don't send any link data if the length is 35 for compatibility with the 2.0 branch. + std::string maxfilterlen; + if (cf.maxlen != 35) + maxfilterlen.assign(ConvToStr(cf.maxlen)); + + return Version("Adds channel mode g (filter) which allows channel operators to define glob patterns for inappropriate phrases that are not allowed to be used in the channel.", VF_VENDOR, maxfilterlen); } - - ~ModuleChanFilterFactory() - { - } - - virtual Module * CreateModule(InspIRCd* Me) - { - return new ModuleChanFilter(Me); - } - }; - -extern "C" DllExport void * init_module( void ) -{ - return new ModuleChanFilterFactory; -} +MODULE_INIT(ModuleChanFilter)